[wasm] Remove the use of the "external" bit on OldFunctions section.

test/cctest/wasm/test-wasm-function-name-table.cc

 // Copyright 2016 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/wasm/wasm-function-name-table.h"
 #include "src/wasm/wasm-module.h"
 
 #include "test/cctest/cctest.h"
 
 using namespace v8::internal;
@@ skipping 22 matching lines @@
 
   uint32_t func_index = 0;
   for (Vector<const char> name : names) {
     size_t name_offset = all_names.size();
     all_names.insert(all_names.end(), name.start(),
                      name.start() + name.length());
     // Make every second function name null-terminated.
     if (func_index % 2) all_names.push_back('\0');
     module.functions.push_back(
         {nullptr, 0, 0, static_cast<uint32_t>(name_offset),
-         static_cast<uint32_t>(name.length()), 0, 0, 0, 0, 0, 0, false, false});
+         static_cast<uint32_t>(name.length()), 0, 0, 0, 0, 0, 0, false});
     ++func_index;
   }
 
   module.module_start = reinterpret_cast<byte *>(all_names.data());
   module.module_end = module.module_start + all_names.size();
 
   Handle<Object> wasm_function_name_table =
       BuildFunctionNamesTable(isolate, &module);
   CHECK(wasm_function_name_table->IsByteArray());
 
@@ skipping 47 matching lines @@
 
 TEST(ThreeUnnamedFunctions) {
   const char *names[] = {"", "", ""};
   testFunctionNameTable(ArrayVector(names));
 }
 
 TEST(UTF8Names) {
   const char *names[] = {"↱fun↰", "↺", "alpha:α beta:β"};
   testFunctionNameTable(ArrayVector(names));
 }